RastaMc Posted November 19, 2010 Share Posted November 19, 2010 Does someone knows how to calibrate the speedometer after removing the needle? I've replaced my old 180 km/h speedo plate with a 300km/h plate and the speedometer doesn't gave the same speed. Of course!!! Before, the speedometer had a converter that putted the km in miles. Thus I removed this black box and also placed another speedometer plate. My error was to take out the needle and now I have à big problem. Is there a solution? Quote Link to comment Share on other sites More sharing options...
merckx Posted November 19, 2010 Share Posted November 19, 2010 I used my satnav that displays speed and adjusted the needle according when stationary. or Get someone to drive in the next lane at a fixed speed. Quote Link to comment Share on other sites More sharing options...
RastaMc Posted November 21, 2010 Author Share Posted November 21, 2010 I used my satnav that displays speed and adjusted the needle according when stationary. or Get someone to drive in the next lane at a fixed speed. I did it with my nav system already and it doesn't work. For example, if I drive at 100km/h and put the needle at that speed it will be ok. But the rest of the speeds gives an other nummer. Thus by 100 give it 100 but by 50 I see 70 or by 120km/h I see 160km/h at my speedometer. Quote Link to comment Share on other sites More sharing options...
chrispot Posted November 21, 2010 Share Posted November 21, 2010 i think you need to put the convertor back, your original speedo was a 180km and your new one 300km, so with no covertor fitted and you drove at a speed that put the needle half way around the dial, on the 180km dial face would show 90km but with the 300km dial would show 150km, as you can see both at the same speed and same dial position. my car has a 180km speedo but with a convertor it now reads 180mph which is about 300km. no convertor = 0 to 180km convertor =0 to 300km hope you understand this, regards chris. Quote Link to comment Share on other sites More sharing options...
Dr_Doom Posted November 21, 2010 Share Posted November 21, 2010 Not got one but these are supposed to be good - http://www.yellr.com/yb_home.htm Quote Link to comment Share on other sites More sharing options...
Terminator Posted November 21, 2010 Share Posted November 21, 2010 (edited) This may not a direct solution to your problem, but worth considering, I have posted this link before, but I think this product has been totally ignored here. I have used it with great success, it will convert KM to MHP and with the use of a switch from back from MPH to KM if required, one run with SAT NAV at 60mph you can correct your speedo very simply and very accurately. I have compared my speedo with speeds well into 3 figures on my SAT NAV and it is exceedingly accurate across all speeds. It is a brilliant bit of kit; very small, light and totally vibration and water proof. It will store two sets of figures, so great for those who swap diff's or tyres frequently, just switch over and the speedo is bang on again. The max speed recall is fun too. It is far superior to anything else. I don't have a clue why more JDM car owners don't use it, it is not difficult to fit or use. I don't have shares or any links to the company that make it, I recommend it because it does just what I says on the tin, and it is here in the UK and has UK support (though you wont need it). It is fully digital so no guesswork with button push sequences, just put in the numbers. If you go for it, ask specifically for the "generic loom". Details here but the price has gone up, probably still cheaper than importing from the USA. Edited November 21, 2010 by Terminator (see edit history) Quote Link to comment Share on other sites More sharing options...
mrgee2jz Posted November 21, 2010 Share Posted November 21, 2010 Thats what i have on my car, i got up to 150mph sat nav speed on a private road and set it up to that, now its 100% Quote Link to comment Share on other sites More sharing options...
RastaMc Posted November 23, 2010 Author Share Posted November 23, 2010 i think you need to put the convertor back, your original speedo was a 180km and your new one 300km, so with no covertor fitted and you drove at a speed that put the needle half way around the dial, on the 180km dial face would show 90km but with the 300km dial would show 150km, as you can see both at the same speed and same dial position. my car has a 180km speedo but with a convertor it now reads 180mph which is about 300km. no convertor = 0 to 180km convertor =0 to 300km hope you understand this, regards chris. this sounds rational. I'll try this first ...only I hope I can remember how the wires were fitted Tnx Chris Quote Link to comment Share on other sites More sharing options...
SupraDan24 Posted October 2, 2012 Share Posted October 2, 2012 Thought I would bump this up as it's just helped me. I actually left the speedo needle off when I took it for a drive, took it up to 50mph on the SAT NAV and then popped the needle on at the 50mph position. I've checked it at 70mph and 80mph and its still spot on, so definately works Quote Link to comment Share on other sites More sharing options...
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